rule win_quickheal_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        version = "1"
        description = "Detects win.quickheal."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.quickheal"
        malpedia_rule_date = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { 8b35???????? 3bc7 7429 50 ff15???????? a1???????? }
            // n = 6, score = 100
            //   8b35????????         |                     
            //   3bc7                 | cmp                 eax, edi
            //   7429                 | je                  0x2b
            //   50                   | push                eax
            //   ff15????????         |                     
            //   a1????????           |                     

        $sequence_1 = { 50 64892500000000 81ec50040000 68???????? ff15???????? 8d4c2400 e8???????? }
            // n = 7, score = 100
            //   50                   | push                eax
            //   64892500000000       | mov                 dword ptr fs:[0], esp
            //   81ec50040000         | sub                 esp, 0x450
            //   68????????           |                     
            //   ff15????????         |                     
            //   8d4c2400             | lea                 ecx, [esp]
            //   e8????????           |                     

        $sequence_2 = { 8a4dff 8d3c8520020410 8bc3 80c901 }
            // n = 4, score = 100
            //   8a4dff               | mov                 cl, byte ptr [ebp - 1]
            //   8d3c8520020410       | lea                 edi, [eax*4 + 0x10040220]
            //   8bc3                 | mov                 eax, ebx
            //   80c901               | or                  cl, 1

        $sequence_3 = { 8b5c244c 03cb 03e9 8bdd c1eb1d 8d0ced00000000 8be8 }
            // n = 7, score = 100
            //   8b5c244c             | mov                 ebx, dword ptr [esp + 0x4c]
            //   03cb                 | add                 ecx, ebx
            //   03e9                 | add                 ebp, ecx
            //   8bdd                 | mov                 ebx, ebp
            //   c1eb1d               | shr                 ebx, 0x1d
            //   8d0ced00000000       | lea                 ecx, [ebp*8]
            //   8be8                 | mov                 ebp, eax

        $sequence_4 = { 8bc8 83e103 f3a4 b907000000 8d742410 }
            // n = 5, score = 100
            //   8bc8                 | mov                 ecx, eax
            //   83e103               | and                 ecx, 3
            //   f3a4                 | rep movsb           byte ptr es:[edi], byte ptr [esi]
            //   b907000000           | mov                 ecx, 7
            //   8d742410             | lea                 esi, [esp + 0x10]

        $sequence_5 = { 7527 85ed 7523 8b4c2414 e8???????? 53 892d???????? }
            // n = 7, score = 100
            //   7527                 | jne                 0x29
            //   85ed                 | test                ebp, ebp
            //   7523                 | jne                 0x25
            //   8b4c2414             | mov                 ecx, dword ptr [esp + 0x14]
            //   e8????????           |                     
            //   53                   | push                ebx
            //   892d????????         |                     

        $sequence_6 = { 7505 b83f000000 25fc030000 83e20f }
            // n = 4, score = 100
            //   7505                 | jne                 7
            //   b83f000000           | mov                 eax, 0x3f
            //   25fc030000           | and                 eax, 0x3fc
            //   83e20f               | and                 edx, 0xf

        $sequence_7 = { 6683f93b 7422 8d9424ec000000 663bcd 7416 668b08 }
            // n = 6, score = 100
            //   6683f93b             | cmp                 cx, 0x3b
            //   7422                 | je                  0x24
            //   8d9424ec000000       | lea                 edx, [esp + 0xec]
            //   663bcd               | cmp                 cx, bp
            //   7416                 | je                  0x18
            //   668b08               | mov                 cx, word ptr [eax]

        $sequence_8 = { 8bce e8???????? 83f810 0f8c48010000 66837c241003 0f853c010000 8b442414 }
            // n = 7, score = 100
            //   8bce                 | mov                 ecx, esi
            //   e8????????           |                     
            //   83f810               | cmp                 eax, 0x10
            //   0f8c48010000         | jl                  0x14e
            //   66837c241003         | cmp                 word ptr [esp + 0x10], 3
            //   0f853c010000         | jne                 0x142
            //   8b442414             | mov                 eax, dword ptr [esp + 0x14]

        $sequence_9 = { 0f8e6f020000 83c003 c1e802 89442414 8d0c8500000000 894c2410 8b54241c }
            // n = 7, score = 100
            //   0f8e6f020000         | jle                 0x275
            //   83c003               | add                 eax, 3
            //   c1e802               | shr                 eax, 2
            //   89442414             | mov                 dword ptr [esp + 0x14], eax
            //   8d0c8500000000       | lea                 ecx, [eax*4]
            //   894c2410             | mov                 dword ptr [esp + 0x10], ecx
            //   8b54241c             | mov                 edx, dword ptr [esp + 0x1c]

    condition:
        7 of them and filesize < 553984
}